In a previous post about a year or two ago, you recommended a resource entitled, "DESCRIPTIVE ENGLISH GRAMMAR," by House and Harman. We purchased a used copy and have found it very beneficial. I'd like to do some of the diagramming exercises in the second part of the book for extra practice. Do you know where I could find answers to those exercises? I have searched the Internet and cannot find a Teacher's Edition or Answer Key.

If not, can you recommend another resource for ADVANCED diagramming exercises - something more challenging than Harvey's or Mary Daly's book?

To the best of our knowledge, there is no answer key for Descriptive English Grammar. For more advanced diagramming, we have not been able to find much. http://www.german-latin-english.com/diagrams.htm may be helpful. I'm not familiar with his printed material, but the website has excellent information.